Date: Mon, 27 May 2002 18:58:11 -0600 (MDT) From: "M. Warner Losh" <imp@village.org> To: brooks@one-eyed-alien.net Cc: cvs-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/i386/pci pci_cfgreg.c Message-ID: <20020527.185811.128396494.imp@village.org> In-Reply-To: <20020527150933.A18324@Odin.AC.HMC.Edu> References: <200204241530.g3OFUCL52082@freefall.freebsd.org> <20020527150933.A18324@Odin.AC.HMC.Edu>
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In message: <20020527150933.A18324@Odin.AC.HMC.Edu>
Brooks Davis <brooks@one-eyed-alien.net> writes:
: On Wed, Apr 24, 2002 at 08:30:12AM -0700, Warner Losh wrote:
: > imp 2002/04/24 08:30:12 PDT
: >
: > Modified files:
: > sys/i386/pci pci_cfgreg.c
: > Log:
: > o Work around bugs in the powerof2 macro: It thinks that 0 is a power of
: > 2, but that's not the case. This fixes the case where there were slots
: > in the PIR table that had no bits set, but we assumed they did and used
: > strange results as a result.
: > o Map invalid INTLINE registers to 255 in pci_cfgreg.c. This should allow
: > us to remove the bogus checks in MI code for non-255 values.
: >
: > I put these changes out for review a while ago, but no one responded
: > to them, so into current they go.
:
: After a month of not having time to do anything about it and looking down
: the wrong path several times, I found that the second part of this commit
: hoses my HP Omnibook 500. The symptom is that the console doesn't flush
: except when the kernel prints something and other timers don't seem to
: fire so dhcp hangs forever. Any idea how to debug this?
What bogus value is mapping to 255? Sounds like we're now maybe
routing an interrupt to something that didn't have/want one before.
First step would be to do a before/after test and see which devices,
if any, get a new interrupt. Next best would be to send me a dmesg
before/after and I can help you interpret it.
Warner
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